java在src/test/resourse下读取properties文件

package com.jiepu;
import java.io.File;
import java.net.URISyntaxException;
import java.util.Map;
import java.util.Properties;

//java在gradle工程访问src/test/resources或者src/main/resources目录下的资源配置文件
public class  TestMain
{
    public static  void main(String args[]) throws URISyntaxException {
        System.out.println(new File(".").getAbsolutePath());
        Properties properties=new Properties();
        try {
            // properties.load(new FileInputStream("config.properties"));
            System.out.println(TestMain.class.getResource("/config.properties").toExternalForm());
            System.out.println(Thread.currentThread().getContextClassLoader().getResource("config.properties"));
            properties.load(TestMain.class.getResource("/config.properties").openStream());

        } catch (Exception e) {
            e.printStackTrace();
        }
        String version=properties.getProperty("version");
        System.out.println(version);
        for(Map.Entry<Object,Object>  entry:properties.entrySet())
        {
            Object key=entry.getKey();
            Object value=entry.getValue();
            System.out.println(key+"="+value);
        }
    }

}

 

[java] view plaincopy

import java.io.File;
import java.io.IOException;
import java.net.URL;

public class MyUrlDemo {


    public static void main(String[] args) {
        MyUrlDemo muDemo = new MyUrlDemo();
        try {
            muDemo.showURL();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    public void showURL() throws IOException {

        // 第一种：获取类加载的根路径   D:\git\daotie\daotie\target\classes
        File f = new File(this.getClass().getResource("/").getPath());
        System.out.println(f);

        // 获取当前类的所在工程路径; 如果不加“/”  获取当前类的加载目录  D:\git\daotie\daotie\target\classes\my
        File f2 = new File(this.getClass().getResource("").getPath());
        System.out.println(f2);

        // 第二种：获取项目路径    D:\git\daotie\daotie
        File directory = new File("");// 参数为空
        String courseFile = directory.getCanonicalPath();
        System.out.println(courseFile);


        // 第三种：  file:/D:/git/daotie/daotie/target/classes/
        URL xmlpath = this.getClass().getClassLoader().getResource("");
        System.out.println(xmlpath);


        // 第四种： D:\git\daotie\daotie
        System.out.println(System.getProperty("user.dir"));
         /*
          * 结果： C:\Documents and Settings\Administrator\workspace\projectName
          * 获取当前工程路径
          */

        // 第五种：  获取所有的类路径 包括jar包的路径
        System.out.println(System.getProperty("java.class.path"));

    }
}